Zinc Oxide quantum dots (QDs) were synthesized using a “seed” method, which produces a dispersion of highly modified ZnO particles. Hydroxide solutions of LiOH, NaOH, KOH and CsOH were reacted with zinc acetate in concentrations of 0.4-1.0 mmol and 0.05-0.25mmol, respectively. The particles were characterized using UV-Vis and Fluorescence spectroscopy. Varying solution concentrations produced QDs ranging in size as shown with fluorescence emissions ranging from orange to purple. Higher LiOH and zinc concentrations produced small QDs with emissions around 400-500 nm whereas similar concentrations of NaOH and KOH yielded QDs with yellow, orange emissions around 600-650nm. Transmission electron microscopy confirmed QD particle sizes.<br/>

Growth kinetics of zinc oxide quantum dots

249th National Meeting (2015)

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